User: What causes the mechanical weathering of rocks and soil?
A.
oxidation
B.
gravity
C.
water
D.
water with acids
E.
acids from living things

Weegy: C. water Mechanical or physical weathering involves the breakdown of rocks and soils through direct contact with atmospheric conditions, such as heat, water, ice and pressure. Marvel2|Points 1268|

User: In 1958 a large earthquake in Alaska produced a tsunami. What was the approximate height of the tsunami?
A.
35 meters
B.
57 meters
C.
140 meters
D.
520 meters
E.
630 meters

Weegy: In 1958 a large earthquake in Alaska produced a tsunami. The approximate height of the tsunami was D. 520 meters. Expert answered|andrewpallarca|Points 25379|

In Greek, the word 'Pangaea' means 'all lands' . It is derived from Ancient Greek "Pan" which means "entire" and "Gaia" means "Earth". Pangaea was a super continent that existed around 200 million years ago before it split up. Their breaking up appears to have been cyclical through Earth's history.